1872440573 has 4 divisors (see below), whose sum is σ = 1883652960. Its totient is φ = 1861228188.

The previous prime is 1872440569. The next prime is 1872440617. The reversal of 1872440573 is 3750442781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3750442781 = 4349 ⋅862369.

It is a cyclic number.

It is not a de Polignac number, because 1872440573 - 2² = 1872440569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1872440573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872440533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5605943 + ... + 5606276.

It is an arithmetic number, because the mean of its divisors is an integer number (470913240).

Almost surely, 2^1872440573 is an apocalyptic number.

It is an amenable number.

1872440573 is a deficient number, since it is larger than the sum of its proper divisors (11212387).

1872440573 is a wasteful number, since it uses less digits than its factorization.

1872440573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212386.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 1872440573 is about 43271.7063795732. The cubic root of 1872440573 is about 1232.5447070310.

The spelling of 1872440573 in words is "one billion, eight hundred seventy-two million, four hundred forty thousand, five hundred seventy-three".